Adriatic Sea Ionian Sea North Sea Baltic Sea
Lithuania Finland Russian Federation Latvia
75% 50% 25% 90%
Soviet Union Finland Great Britain Sweden
Lake Ulemiste Lake Snadjarv Lake Viljandi Lake Peipus
British Ottoman Russian Austro-Hungarian
Paldiski Valga Tallinn Narva
13 million 1.3 million 130 million 130 000